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Finding the Fourth Proportional to 45,998.36, 68,997.79 and 13,977.74

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Solution

The fourth proportional to 45,998.36, 68,997.79 and 13,977.74 is: 20,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,998.36 : 68,997.79 = 13,977.74 : x
  2. Step 2: Convert to fraction form
    45,998.36/68,997.79 = 13,977.74/x
  3. Step 3: Cross multiply
    45,998.36x = 68,997.79 × 13,977.74
  4. Step 4: Simplify right side
    45,998.36x = 964,433,169.19
  5. Step 5: Solve for x
    x = 964,433,169.19/45,998.36
  6. Step 6: Final answer
    x = 20,966.69

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.